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Hi
I have trouble getting WPF binding to a simple CLR Property to work (Visibility=Collapsed)
<Button Name="btnSomeCmd" HorizontalAlignment="Left" Grid.Row="0" Grid.Column="3" Click="btnSomeCmd_Click" Width="25px" Height="25px" Visibility="{Binding Path=IsSomeCmdVisible}" >
public partial class SomeUserControl : UserControl
{
...
public Visibility IsSomeCmdVisible
{
get { return Visibility.Collapsed; }
}
...
}
sigh, WPF makes it so hard to get simple things work. (I got it working with dependency property but simple CLR... anyone please write an article on this)
dev
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God damn, got it:
<UserControl x:Class="..."
x:Name="BasicConfigCtrl"
...
Visibility="{Binding Path=IsSomeCmdVisible, ElementName=BasicConfigCtrl, Mode=OneWay}"
...
ElementName references UserControl's x:Name tag.
dev
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The easy way to do this is to have a boolean condition (depending on the effect you are trying to achieve), and then use a value converter. Have a quick google for BooleanToVisibilityConverter[^] to find out more about it.
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Hi,
I bought this book recently and going through the chapters...
Question:
I am unable to login when running the solution in chapter 4.
Has anyone had the same issue please?
Thanks
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That is one of the most obscure question I have run across.
You expect someone to guess the book (or do you think there is only 1 book on Silverlight/WPF). Who the hell knows what is in chapter 4 of your mystery book!
You presumably have the source code for the project and can therefore debug it and work it out!
Never underestimate the power of human stupidity
RAH
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Hi,
Thanks for replying...
Please note that the name of the book is in the subject.
Regards
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Hi all,
In my application i m willing to access a network folder.i m using "FileAuthorizationModule.CheckFileAccessForUser(strLocation, userToken, "GET" ) = True )".Wehn the file is in server then there is no problem but when it is in other system then the following error occur-
"virtual path outside of the current application is not supported.parameter name:VirtualPath"
Any clue?
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Well, for a start you've posted an ASP.NET question in the WPF forum. One of the reasons that the forums exist is so that questions and solutions can be easily searched for, based on previous questions of the same type. If this is bypassed, then people have no idea where to go to find the answer, so the same answer ends up being given time and time again.
I will say though - with a judicious use of Google, you will readily be able to identify the solution to your problem. Just type the error message in to the search engine of your choice, and take a look at what other people have done when they encountered this problem.
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I'm working on an installation window for our software. I'm having an issue trying to get it to run off of a cd or dvd. I've built a button that is to run our license installer but when it is burnt to cd or dvd it says it can't find the file. Here's what I'm using to launch the install:
i:EventTrigger EventName="Click"
ei:LaunchUriOrFileAction Path="\Installation Window\Installation Window\License\License.exe"
Any ideas?
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The obvious question is, have you verified that this path exists on the CD? If it does, check that LaunchUriOrFileAction isn't doing something "clever" to the path, so that what you think is being run is actually what is being run (an easy way to do this is to temporarily write the path that's being launched to the event log).
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Hi,
I have been reading alot regarding this topic.
The only difference I was able to spot while reading was that the page is used if you want to navigate from one page to another.
I have done several tests in a test silverlight application.
In the mainpage.xaml which is a usercontrol i have placed linkbuttons.
These linkbuttons refer to either usercontrols or pages.
The navigation seems to work whether i go to a usercontrol page or a silverlight page (navigation page).
And the history, i.e. go back and forward buttons also work in both pages.
So, what is the main difference please?
Thanks
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The Page is actually an inherited UserControl. The big difference between them is that the Page is eligible to be loaded into a Frame, and you can set the Title, which sets the browser title (something you can't easily do in a UserControl).
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You're welcome. BTW, I've asked Chris to have a quiet word with your univoter to stop them from blanketing you with 1 votes.
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Hi Pete,
A few questions:
1- Who is Chris?
2- What/who is univoter?
3- what do you mean by blanketing me with 1 votes?
Thank you, it is great to find a few like you who help the biginners like me.
Well done.
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Chris is Chris Maunder - he's one of the founders of Code Project.
A univoter is somebody who votes one without a reason. Basically, somebody has taken exception to you for some reason and has been unfairly voting 1 against your posts, without giving you a reason why they've voted 1. It's annoyed me greatly, so I've asked Chris to have a word with them to stop - what they are doing is against the spirit of the site.
I'm glad to help. This is the reason I come to the forums after all.
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What happens if someone gives 1 vote?
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Not a lot really. It just gives them an ego boost, but whoever it is, they are a coward because they hide behind anonymity. The thing is, you can filter messages so that you can't see low vote posts, so potentially somebody could miss your posts.
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each object on Canvas can be added to one of the layer (say layer 1, 2, 3) and is hidden.
only one layer is visible at a time and only targetted portion of the
layer show expose the object in it.
any idea how to acheive this in wpf???
- Regards -
J O N
A good thing is a bad thing if it keeps you from the best thing. - Dr. Adrian Rogers
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There are many different ways of achieving this, and the answer really depends on what you are most comfortable with:
You could add multiple canvases, and just display one depending on the particular one you need.
You could implement one canvas, with a collection of layer items which contains as properties, the objects you want to display and a single flag determining whether or not the layer was visible.
You could have a collection of all objects (this is the one I wouldn't choose if I were you), and have a flag on each determining whether or not it was visible.
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Canvas.Zorder should help you out.
The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it.
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Hi,
I did a application (WPF) which has ImageContrl inside a Border, and using mouse we can Zoom and Pan the control. It works fine except that while Panning the image after zoom, it moves out of the viewport of the Border. Can any one throw me light on hw to solve this
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One thing to be aware of when using a ScaleTransform is that it does not affect the size of the element you are scaling. If you are panning your object by a value that corresponds to the ActualWidth/Height then it might explain why it is panning incorrectly. Perhaps multiply the scale amount with your ActualWidth/Height to get its 'real' screen dimensions.
Cheers,
Daniel
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Good answer Dan. Good to see you here among the mortals. 
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